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GRAIN SBPARATOR.

Patented Sept.. 25, 1888.

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"'(No Modeli) 2 Sheets-Sheet 2. A. G. NEWTON.

GRAIN SEPARATOR.

Patented Sept. 25, 1888.

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ATENT ADELBERT G. NEWTON, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO NIGH- OLS, SHEPARD & COMPANY, OF SAME PLACE.

4 5 f and actuated in the usual manner.

GRAlN SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 389,937, dated September 25, 1888.

Application filed October 13, 1887. Serial No. 252.218.

To all whom it may concern.-

Be it known that I, ADELBERT C. NEWTON, of Battle Creek, county of Calhoun, and State of Michigan, have invented a new and useful Improvement in GrainSeparators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to the shaking-screens of thrashing-machines and other grain-separators; and the object of my invention is to so construct the screen as to cause the short straws when dumped to be caught by the fanblast and carried over the riddle so as not to stick in the meshes of the same.

My invention consists in certain peculiar and novel features of construction and arrangements hereinafter described, and pointed out in the claims.

In order that my invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure 1 is a central vertical longitudinal section ofa thrashing-machine, with my improvcments applied thereto. Fig. 2 is a dctached perspective view of a portion of the shaker partly broken away, and showing the perforated plate or sieve constructed in accordance with my invention.

In the said drawings, A designates the frame ofa thrasher, B the fan, and C the shaker, such parts being of the usual or any preferred form or construction.

D designates the shoe, which is in practice arranged to operate with a lateral or side shake in any usual or preferred manner, and E designates the pan, which is arranged to have an endwise shake in the usual or any preferred manner.

F designates the shaker-frame, which is suspended upon suitable links in the frame A, and is connected with the crankshaft by rods Within this frame are placed two screens, F F which are located one in front of the other and perforated with numerous holes, as shown. At the outer end of the frame is placed a plate, F, which is formed with perforations f, the punched portions of which are bent downward and rearward toward the fan, as shown.

G designates a finely-perforated plate, which is set in side frames, 9 g, rigidly secured be- (No model.)

neath the frame F. This plate lies below the plates F F", and extends obliquely rearward and downward, as best shown in Fig. 1.

It will be seen that the material is sifted on the plates F F and drops upon the plate G, which in turn empties itself at h. The short straws, 850., fall through the larger holes of the plates F F", and, when dumped, are caught by the fan-blast and carried so far back over the riddle as to avoid all possibility of sticking in the meshes. This forward feeding of the material from the perforated plate G to the riddle is rendered effective, owing to the endwise shake or vibration of the screenframe, and it is to be understood that the above character of movement constitutes an important feature of my invention. WVere it not for the plate G, the impurities would drop directly upon the riddle.

In Fig. 2 the plate G is shown as of greater length than the side frames and as capable of being slid therein, so as to drop the material at any desired point upon the riddle. This arrangement is not, however, indispensable, and the rigid location of the plate is, ordinarily, sufficient for all practical purposes.

Having thus described my invention, whatl claim as new, and desire to secure by Letters Patent, is

1. The combination, with the longitudinallyvibrating pan E, provided with the perforated plates F and F and with the blast-fan'and shoe D,located beneath the same, of the pendcnt flanges or lug's secured rigidly to said pan and a screen or plate supported therein beneath the plates F and F and having its delivery end located above said shoe, for the purpose and substantially as described.

2. The combination, in a grainseparator, of the longitudinally-vibrating pan E, provided with the perforated plates F and F and with the blast-fan and shoe D, located beneath said pan, of the pendent lugs or flanges rigidly secured to said pan and having theinclined grooves, and the perforated screen or plate adjustable in said grooves, substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 10th day of October, A. D. 1887.

ADELBER'I O. NEXVTON.

Witnesses:

FRANK W. DUNNING, A. C. KINGMAN, 

